Double-impeller self-rotation type fireproof mixer

Abstract

The invention discloses a double-impeller self-rotation type fireproof mixer. The double-impeller self-rotation type fireproof mixer comprises a three-way joint, wherein the three-way joint comprises a mixing pipe and a connecting pipe which are communicated with each other; the two ends of the mixing pipe are communicated with a grouting pipeline; the connecting pipe is communicated with a nitrogen injecting pipeline or a glue injecting machine; two impellers are connected in the mixing pipe in a relative-rotation manner and are respectively positioned at the two sides of the connecting point of the connecting pipe and the mixing pipe; a check valve is communicated on the connecting pipe in a sealed manner; two impeller fixing frames are fixedly connected in the mixing pipe in a front-rear corresponding manner, and are fixedly connected with impeller shafts, and the impellers are arranged on the impeller shafts in a relative-rotation manner; the distance from the connecting point of the connecting pipe and the mixing pipe to the far end of the mixing pipe is 5-8 times of that from the connecting point of the connecting pipe and the mixing pipe to the near end of the mixing pipe; the distance from the impeller positioned at the far end of the mixing pipe to the connecting point of the connecting pipe and the mixing pipe is 7-12 times of that from the impeller positioned at the near end of the mixing pipe to the connecting point of the connecting pipe and the mixing pipe; a grouting pipe communicated with the grouting pipeline is fixedly communicated with the two ends of the mixing pipe in a sealed manner.

Description

technical field [0001] The invention relates to a mining device, in particular to a double-impeller spin-type fireproof mixer. Background technique [0002] The implementation of gel injection and foaming at underground high temperature points is one of the important control measures taken by our mine in the treatment of high temperature points. This measure has played a good role in the treatment of high temperature points in 23612, 23604 and other places in our mine. [0003] Grouting pipelines are used during foaming and gel injection, and it is necessary to mix gelling agent with mud or nitrogen with foaming liquid in the grouting pipeline, and then use drilling to enter the high temperature point of the gob, so as to to fire protection. At present, when foaming or gel injection is carried out, it is necessary to make an additional foamer on the grouting pipeline. Foaming and gel injection cannot be used together with a set of mixing facilities. At the same time, the mi...

AI Technical Summary

Problems solved by technology

At present, when foaming or gel injection is carried out, it is necessary to make an additional foamer on the grouting pipeline. Foaming and gel injection cannot be used together with a set of mixing facilities. At the same time, the mixed foam or gel is often mixed unevenly , The disadvantage of poor mixing effect affects the progress and effect of fire prevention and control

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